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Meet Carlo and Mia Tonin, the visionary founders of BY TONIN, captured in a warm, inviting portrait embodying the brand's commitment to exquisite jewellery.

About Us

BY TONIN is a demi-fine jewellery brand founded in New Zealand, shaped by our journey together and by how jewellery has marked our most meaningful moments. Over time, these pieces became symbols of love, growth and connection, daily companions that hold the memories we treasure most.

Our hope is to share the joy of wearing jewellery that carries love and memories, created to serve as beautiful reminders of what matters to you most.

— Carlo and Mia Tonin

Experience the exquisite texture of BY TONIN's Bel e Viv gold ridged ring, elegantly displayed on a luxurious green velvet surface, inviting a touch of modern sophistication.

Our Values

Choose less, but better

We focus on mindful choices that value quality, meaning, and care over excess. This encourages us to slow down, appreciate what we have, and focus on what truly matters, always with kindness and respect for people and the world around us.

Live with intention

We do our best to be present, making each moment and decision purposeful. With care for ourselves, others, and the environment, we nurture the relationships and moments that bring meaning and balance to our lives.

Hold tight to what matters

We treasure the people and moments that fill our lives with love and meaning. Through gratitude and presence, we create space for what shapes us, reminding ourselves that the most important things in life come from love and connection.

Portrait of Mia Tonin, co-founder of BY TONIN, smiling warmly with natural light highlighting her face, wearing simple jewellery.
Make a captivating statement with BY TONIN Bel e Viv gold hoop earrings, featuring vibrant hexagonal lapis lazuli charms, artfully presented on a dynamic blue patterned background.

Behind the Designs

Mia, a natural artist, breathes life into every BY TONIN design, bringing the same care, thoughtfulness, and sensitivity that defines her creative practice.

The creative process is deliberate. Every design balances form and purpose. Sketches develop gradually, textures and shapes are carefully refined, and every curve is shaped with an artist’s sensitivity. This mindful journey transforms ideas into jewellery interlaced with care, emotion and memory.

Our designs move through life’s moments. Minimalist and timeless, each design speaks of refinement and intention, offering space for personal stories to be carried and shared. The simplicity of form allows each piece to become a cherished keepsake for memory, ritual, and identity.

EXPLORE THE COLLECTIONS

Embrace the rugged beauty of New Zealand's coast, with powerful waves breaking over dark rocks and the silhouette of Rangitoto Island under a dramatic sky, setting the scene for BY TONIN's essence.

Sustainability

We partner only with Responsible Jewellery Council (RJC) certified suppliers. The RJC sets global standards for ethical, social, and environmental practices in the jewelry industry, ensuring our partners uphold the highest values.

Our gemstones are ethically sourced and fully traceable, while our packaging is crafted from recycled and biodegradable materials. Our products are made in small batches, creating a big impact through mindful, sustainable consumption.

RESPONSIBLE PRACTICES

A close-up, high-angle shot of a delicate gold chain necklace with a lobster clasp and a small rectangular tag reading "BY TONIN" on the extender chain. The necklace is lying on a polished wooden surface, and several other delicate gold chains are visible in the background, creating a layered effect.

Craftsmanship

6 layers of plating.
 4 quality tests. 
1 thoughtful standard at the heart of everything we do.

Every piece undergoes a meticulous plating process to create a durable, lasting finish designed to withstand daily wear.

Our commitment to quality goes further with rigorous testing, giving you confidence that your jewellery can handle everyday life.

At the core of our process is a commitment to love, respect, and intention, ensuring that every piece reflects not only exceptional craftsmanship but also the care we hold for the people and planet.

QUALITY AND TESTING

Adorn your neckline with BY TONIN's Bel e Viv gold necklace, gracefully showcasing a captivating honeycomb lapis lazuli pendant as worn in a stunning close-up.

Our Legacy

We put our hearts into creating jewellery that grows more beautiful over time, shaped by the memories it gathers along the way. Whether you’re treating yourself or choosing a gift for someone special, each BY TONIN piece is ready to be what you need it to be: a daily comfort, a symbol of achievement, or a beautiful reminder of someone you love.

BY TONIN is made with care, understanding, and the belief that the most precious things in life are the memories we create and the connections we cherish. We warmly invite you to discover our collection, designed to be worn, loved, and shared.

FIND SOMETHING TO LOVE

About BY TONIN

Minimal, Sustainable Jewellery Designed in New Zealand

BY TONIN is an Auckland, New Zealand-based demi-fine jewellery brand focused on minimalist design, intentional craftsmanship, and sustainable values. Founded by Carlo and Mia Tonin, the brand creates refined, symbolic pieces made in small batches using ethically sourced gemstones, high quality gold plating over sterling silver and 18k gold vermeil. Each design reflects a quiet elegance and is meant to be worn daily, becoming part of your story through the memories it gathers. With a deep respect for people and the planet, BY TONIN partners only with Responsible Jewellery Council-certified suppliers, and every collection is packaged in biodegradable, recycled materials. Our commitment to slow fashion and thoughtful production ensures that every piece is not only beautiful—but made to last. Discover timeless jewellery with meaning—designed in New Zealand, crafted for intentional living.